Seattle, Boston, Nairobi, New Orleans, Rio de Janiero, Detroit, Paris, and Beijing are not remote places. I'm not sure how you can say that a Command Post was created near your remote fronts and made them not so remote anymore. A suburb of any of these cities does NOT qualify as a remote place.

Suppose you had a colony of fronts 100 miles northeast of Flagstaff, Arizona. It's miles away from any major highways or towns. Let's assume that there aren't any fronts nearby, either. Given this, how would anyone invade you, even if a new Command Post or Black Market were placed in Phoenix? If there isn't a trail of fronts leading to your area, how would other players find you? Even if it were known that you have a group of fronts somewhere in the northeastern quadrant of Arizona, how would people find you? Arizona is a large place, and it would be prohibitively time-consuming to search every square mile of northeastern Arizona to look for you, especially without the aid of pre-existing fronts.